AA 4190 then ET 3511 at O'Hare
Roanoke → Chicago → Muscat
Timetable, Chicago time
18:15AA 4190 from Roanoke at the gate
09:05ET 3511 to Muscat leaves the gate
14 h 50 apart on the timetable, overnight
ET 3511 leaves 14 h 50 after AA 4190 arrives on the timetable: more than half a day, so not a connection we count.